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Property and Equipment - Additional Disclosures (Details) (USD $)	3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended			12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014 Compression equipment	Sep. 30, 2013 Compression equipment	Sep. 30, 2014 Compression equipment	Sep. 30, 2013 Compression equipment	Sep. 30, 2014 Accounts payable and accrued liabilities	Dec. 31, 2013 Accounts payable and accrued liabilities
Property and Equipment
Depreciation expense on property, plant and equipment	$ 17,400,000	$ 12,600,000	$ 48,800,000	$ 34,900,000
Purchases of property and equipment									37,000,000	15,800,000
Impairment of Long-Lived Assets
Impairment of long-lived assets	$ 1,163,000		$ 1,163,000		$ 1,200,000	$ 0	$ 1,200,000	$ 0

- Definition

The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).

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